Audio
Change speed, pitch and volume, reverse a clip, generate speech from text, or open the full CBCOM Audio Studio when one tool at a time isn't enough. Everything decodes and renders on your own device.
Free online audio tools
Every one of these audio tools runs on your own device, so a private recording, a voice note or a music file is never uploaded anywhere. They are free with no account, and when a single tool is not enough the full CBCOM Audio Studio picks up where they leave off.
Which one do you need?
Most jobs here are a single step. If you only need a different file type, the Audio converter reads MP3, WAV, M4A, FLAC, OGG and Opus and writes MP3, WAV or FLAC, and MP4 to MP3 pulls the sound out of a video. If something is too quiet in one spot, the Audio volume editor lets you select just that stretch and change it rather than the whole file. The Audio speed changer and the Voice pitch changer are deliberately separate tools: speed drags pitch along with it, the way a record played faster sounds higher, while the pitch changer leaves the length untouched. Voice changer applies a character in one click, and Text to speech reads typed text aloud and hands you an MP3. When one operation is not enough, the CBCOM Audio Studio puts several tracks, effects and a synthesizer on one timeline.
Common questions
Do my recordings get uploaded?
No. Every audio tool on this page decodes and renders inside your browser, using your own device's processor. The file never travels to us, which is why there is no upload bar and why the practical limit is your computer's memory rather than our server. A private recording, a voice note or unreleased music stays entirely on your machine.
Which formats can I open and save?
You can open anything your browser can decode, including the audio track of most video files. For saving we offer MP3, WAV and FLAC. We deliberately do not write AAC or WMA: shipping an AAC encoder requires a paid patent licence, and there is no free WMA encoder worth the name. We would rather leave a format out than ship one that half works.
Is there a length limit?
The free tier caps a single file at about a minute and a half, so a phone does not run out of memory halfway through. A day pass or a subscription lifts that cap, and the Audio Studio has no per-file limit at all — there the only real ceiling is how much your own device can hold at once.